On an Amazon profile, under the pen name Cosmo Setepenra, his bio says:

After completing an Associate’s degree in General Studies at Central Texas College, Cosmo then attended Clark Atlanta University to further his education.

The very military-oriented CTC provides many learning options including distance education and multiple campuses. It's entirely possible he never set foot onto the main campus in Killeen, opting instead to correspond or utilize one of CTC's other facilities.